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from en.wikipedia.org...
In 1973, the Scottish astronomer and science fiction writer Duncan Lunan claimed to have managed to interpret a message caught in the 1920s by two Norwegian physicists[21] that, according to his theory, came from a probe orbiting the Moon and sent there by the inhabitants of a planet orbiting Epsilon Boötis.[22] The story was even reported in Time magazine.[23] Lunan later withdrew his Epsilon Boötis theory, presenting proofs against it and clarifying why he was brought to formulate it in the first place.[24]
Originally posted by NJoyZ
So the guys who discovered it, disproved it. What do you think? Has anyone seen the evidence for and against?
Which is most plausible? Is there evidence of a cover up?
For one thing, the space shuttles did not have polar orbits.
The disadvantage to this orbit is that no one spot on the Earth's surface can be sensed continuously from a satellite in a polar orbit.
Originally posted by Panic2k11
reply to post by Phage
Just for completeness
For one thing, the space shuttles did not have polar orbits.
The public acknowledged space shuttle missions did no involve polar orbits.
Polar orbits
The disadvantage to this orbit is that no one spot on the Earth's surface can be sensed continuously from a satellite in a polar orbit.
There are some benefits, the window of detection of the satellite is shorter and it costs less fuel to make large changes to the satellite overpass.
Another Defense Department-driven requirement, Logsdon said, was the ability to take off and return to a West Coast launch site after a single polar orbit. Because of the Earth's rotation, a single polar orbit would not bring the shuttle back directly over its launch site, meaning it would have to glide farther through the atmosphere to land than otherwise would be the case. That drove NASA to add large delta-shaped wings and a more robust--not to mention heavier-- thermal protection system to its space shuttle design.
STS-61-F (Challenger) Planned Launch Date: 15 May 1986 Primary mission intended to deploy the Ulysses solar polar orbiter with a Centaur-G upper stage. Most of the crew would fly on the first post-Challenger shuttle mission, STS-26. Ulysses itself would eventually be launched by Discovery on STS-41 with an IUS.
Since polar orbits can allow full global coverage on a regular basis, they are often used for earth-mapping, earth observation and reconnaissance satellites, as well as some weather satellites. However, polar orbits require more energy than a typical eastward launch, as they do not benefit from the earth's rotational speed of over 850 miles per hour (1,370 km/h) at this latitude. Achieving a polar orbit from a Florida launch site is possible, but because Kennedy Space Center has major population centers to both the North and South, polar orbit flights would require hugely inefficient maneuvers to avoid them, reducing payload capacity by 30% due to the extra fuel required to reach orbit.
Vandenberg AFB Space Launch Complex 6 (SLC-6) was declared operational during acceptance ceremonies held on October 15, 1985. However, much additional work and testing was still required. ''Enterprise'' was used for a series of fit checks like those conducted at LC-39 in 1980.
The inaugural polar-orbit flight, designated STS-62-A, and using ''Discovery'' with Shuttle veteran Robert Crippen as commander, was planned for October 15, 1986. However, the ''Challenger'' Disaster of January 28, 1986 grounded the Shuttle fleet as efforts were concentrated on recovery and returning the program to flight after a two year hiatus.
Over the years, better theories were developed and tested.
Originally posted by Panic2k11
reply to post by JimOberg
I'm no expert but ...
From Last Chapter Opens For Space Shuttle Born Of Compromise @ space.com.
Another Defense Department-driven requirement, Logsdon said, was the ability to take off and return to a West Coast launch site after a single polar orbit. Because of the Earth's rotation, a single polar orbit would not bring the shuttle back directly over its launch site, meaning it would have to glide farther through the atmosphere to land than otherwise would be the case. That drove NASA to add large delta-shaped wings and a more robust--not to mention heavier-- thermal protection system to its space shuttle design.
looking at Astrodynamics @ Wikibooks regarding Launch Inclination and Latitude, I see the point you are making but can't the shuttle and a satellite be moved into polar orbit?
Originally posted by intrptr
reply to post by JimOberg
Over the years, better theories were developed and tested.
For instance? Thanks in advance for your reply.
Originally posted by Panic2k11
The article STS-62A: The Polar Express also contains more information.
This to me seems to indicate that there is the possibility that non public missions may in fact have used polar orbits. Note that polar orbits as I stated are extremely interesting for military/surveillance purposes. This is also interesting in the context of The Black Knight Satellite.
The overpass I mentioned was in reference to ground detection of the satellite. See the STS-62A: The Polar Express IIRC it mentions some of the defense dep. considerations.
Originally posted by intrptr
reply to post by JimOberg
What an amazing bit of technology review that was. Thank you. I do so appreciate when experts come here and elevate our level of knowledge.
Originally posted by JimOberg
Originally posted by intrptr
reply to post by JimOberg
Over the years, better theories were developed and tested.
For instance? Thanks in advance for your reply.
This is an exercise best "left to the student". When you've exhausted the resources of search engines, ask again. But you really ought to be able to find this out on your own, no disrespect intended.
en.wikipedia.org...
I heard the usual echo (from transmissions) which goes round the Earth with an interval of about 1/7 of a second as well as a weaker echo about three seconds after the principal echo had gone. When the principal signal was especially strong, I suppose the amplitude for the last echo three seconds later, lay between 1/10 and 1/20 of the principal signal in strength.
(Signals) travel many times around the world. Signals can travel around the Earth seven times in one second. Such signals are not uncommon.
"Goodacre reports that he pointed his antenna towards the horizon and received his own 28 MHz signal delayed by up to about 9 seconds.... His measurement implies travel up to 65 rounds around the earth." Probably the upper frequency limit for such effects.
The most popular current theory is that the radio signals are trapped between two ionized layers in the atmosphere and then are guided around the world many times over until they fall out of a gap in the bottom layer. (Ducting propagation between air layers in the lower atmosphere is a well-understood phenonemon. See Radio propagation.)
heim.ifi.uio.no...
At that time, radio was a novel and unexplored field; it was for instance only a few years since 1924 when the US government had tried to get all transmitters in the country to observe radio silence for 5 minutes every hour for two days to listen for signals from Mars.
Originally posted by NJoyZ
Hi Everyone, I was realizing that no one has mentioned this:
from en.wikipedia.org...
In 1973, the Scottish astronomer and science fiction writer Duncan Lunan claimed to have managed to interpret a message caught in the 1920s by two Norwegian physicists[21] that, according to his theory, came from a probe orbiting the Moon and sent there by the inhabitants of a planet orbiting Epsilon Boötis.[22] The story was even reported in Time magazine.[23] Lunan later withdrew his Epsilon Boötis theory, presenting proofs against it and clarifying why he was brought to formulate it in the first place.[24]
So the guys who discovered it, disproved it. What do you think? Has anyone seen the evidence for and against?
Which is most plausible? Is there evidence of a cover up?
heim.ifi.uio.no...
Measurement round-off. But most of the time they seem to have used rather improvised measurement setups. In addition to Størmer's comment above on accuracy, note what van der Pol said [v. d. Pol, 1928] on how measurements were done during the simultaneous reception of echoes in Oslo and Eindhoven on 24 October 1928: The timing of the (first set of) observations was done with a stop watch, while for the (second set of) observations the second hand of an ordinary watch was used.
One second unit. The second is not a universal unit, but may be related to human physiology, as a typical heart beat lasts for one second. If the extra-terrestrial civilization knew us so well that they knew our units for time, then they for sure would know a lot of other things about us as well. Why didn't they choose to communicate to us in a much more obvious way, with all that background knowledge about us already?
www.nasa.gov...
The distant storm was below Fermi's horizon, so any gamma rays it produced could not have been detected.
"Even though Fermi couldn't see the storm, the spacecraft nevertheless was magnetically connected to it," said Joseph Dwyer at the Florida Institute of Technology in Melbourne, Fla. "The TGF produced high-speed electrons and positrons, which then rode up Earth's magnetic field to strike the spacecraft."
The beam continued past Fermi, reached a location, known as a mirror point, where its motion was reversed, and then hit the spacecraft a second time just 23 milliseconds later.